cost
2021/9/2 23:38:00
QCD
2024/12/22 12:04:00
RPC = S * (1 - r) - C
2024/12/22 12:04:00
S = revenue
r = risk(probability of failure)
C = cost
CLUB
2024/12/22 10:45:00
cost of leveling with unresolved bottlenecks
2024/12/22 10:45:00
「every line of code has a cost」
2024/8/23 23:58:00
4C
2022/2/4 6:47:00
Customer Value（顧客価値）、Cost（顧客コスト）、Convenience（利便性）、Communication（コミュニケーション）